972     # requirement, we have to assume the repo is using revlog version 0.

   972     # requirement, we have to assume the repo is using revlog version 0.

   973     # This revlog format is super old and we don't bother trying to parse

   973     # This revlog format is super old and we don't bother trying to parse

   974     # opener options for it because those options wouldn't do anything

   974     # opener options for it because those options wouldn't do anything

   975     # meaningful on such old repos.

   975     # meaningful on such old repos.

   976     if (

   976     if (

   978         or requirementsmod.REVLOGV2_REQUIREMENT in requirements

   978         or requirementsmod.REVLOGV2_REQUIREMENT in requirements

   979     ):

   979     ):

   980         options.update(resolverevlogstorevfsoptions(ui, requirements, features))

   980         options.update(resolverevlogstorevfsoptions(ui, requirements, features))

   981     else:  # explicitly mark repo as using revlogv0

   981     else:  # explicitly mark repo as using revlogv0

   982         options[b'revlogv0'] = True

   982         options[b'revlogv0'] = True

   996     """Resolve opener options specific to revlogs."""

   996     """Resolve opener options specific to revlogs."""

   997 

   997 

   998     options = {}

   998     options = {}

   999     options[b'flagprocessors'] = {}

   999     options[b'flagprocessors'] = {}

  1000 

  1000 

  1002         options[b'revlogv1'] = True

  1002         options[b'revlogv1'] = True

  1003     if requirementsmod.REVLOGV2_REQUIREMENT in requirements:

  1003     if requirementsmod.REVLOGV2_REQUIREMENT in requirements:

  1004         options[b'revlogv2'] = True

  1004         options[b'revlogv2'] = True

  1005 

  1005 

  1006     if b'generaldelta' in requirements:

  1006     if b'generaldelta' in requirements:

  1197     #  - manifestv2: An experimental new manifest format that allowed

  1197     #  - manifestv2: An experimental new manifest format that allowed

  1198     #    for stem compression of long paths. Experiment ended up not

  1198     #    for stem compression of long paths. Experiment ended up not

  1199     #    being successful (repository sizes went up due to worse delta

  1199     #    being successful (repository sizes went up due to worse delta

  1200     #    chains), and the code was deleted in 4.6.

  1200     #    chains), and the code was deleted in 4.6.

  1201     supportedformats = {

  1201     supportedformats = {

  1203         b'generaldelta',

  1203         b'generaldelta',

  1204         requirementsmod.TREEMANIFEST_REQUIREMENT,

  1204         requirementsmod.TREEMANIFEST_REQUIREMENT,

  1205         requirementsmod.COPIESSDC_REQUIREMENT,

  1205         requirementsmod.COPIESSDC_REQUIREMENT,

  1206         requirementsmod.REVLOGV2_REQUIREMENT,

  1206         requirementsmod.REVLOGV2_REQUIREMENT,

  1207         requirementsmod.SIDEDATA_REQUIREMENT,

  1207         requirementsmod.SIDEDATA_REQUIREMENT,

  3408                 b'storage backend: %s'

  3408                 b'storage backend: %s'

  3409             )

  3409             )

  3410             % createopts[b'backend']

  3410             % createopts[b'backend']

  3411         )

  3411         )

  3412 

  3412 

  3414     if ui.configbool(b'format', b'usestore'):

  3414     if ui.configbool(b'format', b'usestore'):

  3415         requirements.add(b'store')

  3415         requirements.add(b'store')

  3416         if ui.configbool(b'format', b'usefncache'):

  3416         if ui.configbool(b'format', b'usefncache'):

  3417             requirements.add(b'fncache')

  3417             requirements.add(b'fncache')

  3418             if ui.configbool(b'format', b'dotencode'):

  3418             if ui.configbool(b'format', b'dotencode'):

  3456     if ui.configbool(b'experimental', b'treemanifest'):

  3456     if ui.configbool(b'experimental', b'treemanifest'):

  3457         requirements.add(requirementsmod.TREEMANIFEST_REQUIREMENT)

  3457         requirements.add(requirementsmod.TREEMANIFEST_REQUIREMENT)

  3458 

  3458 

  3459     revlogv2 = ui.config(b'experimental', b'revlogv2')

  3459     revlogv2 = ui.config(b'experimental', b'revlogv2')

  3460     if revlogv2 == b'enable-unstable-format-and-corrupt-my-data':

  3460     if revlogv2 == b'enable-unstable-format-and-corrupt-my-data':

  3462         # generaldelta is implied by revlogv2.

  3462         # generaldelta is implied by revlogv2.

  3463         requirements.discard(b'generaldelta')

  3463         requirements.discard(b'generaldelta')

  3464         requirements.add(requirementsmod.REVLOGV2_REQUIREMENT)

  3464         requirements.add(requirementsmod.REVLOGV2_REQUIREMENT)

  3465     # experimental config: format.internal-phase

  3465     # experimental config: format.internal-phase

  3466     if ui.configbool(b'format', b'internal-phase'):

  3466     if ui.configbool(b'format', b'internal-phase'):